Postcard



FIG. 1 is a front view of a postcard, embodying my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof, the bottom view being a mirror image thereof; and,

FIG. 4 is a right side view thereof, the left side view being a mirror image thereof.

The postcard is flat. The broken lines are included for showing features that form no part of the claim.

The sign “K11” shown in large dots is part of the claimed design. 

CLAIM The ornamental design for a postcard, as shown and described. 